Canon MT-26EX-RT Macro Twin Lite - Manual (Page 115)

115
Troubleshooting Guide
Optical Transmission Wireless Multiple Flash Photography
Set the master to < :M > and the slave to < :x >
(p.85).
Check that the firing group of the slave unit is set properly.
Set the transmission channels of the master unit and slave unit to
the same numbers (p.86).
Make sure the slave unit is within the transmission range of the
master unit (p.82).
Point the wireless sensor of the slave unit toward the master unit
(p.82).
Position the slave unit at a location with the clearest possible view of
the master unit.
If the master unit and slave unit are too close, the transmission may
not take effect properly.
When performing autoflash photography with three firing groups A,
B, and C, do not fire with firing group C pointing toward the main
subject (p.92).
The slave unit does not fire or unexpectedly fires at full output.
Pictures are overexposed.